JPH0568157B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a control center-side device (also referred to as a master station) equipped with a control console, a status display device, etc., and one or more controlled center-side devices (also referred to as slave stations) belonging to the master station.
It controls the "on" and "off" of a plurality of terminal devices belonging to the slave station, and controls the "on" and "off" of the terminal devices.
The present invention relates to a simple function test device for testing the function of a remote monitoring and control device that monitors the "off" state with the terminal device removed. Further, in the following figures, the same reference numerals indicate the same or corresponding parts, and logic "1" and "0" are simply written as "1" and "0".

[Conventional technology]

FIG. 3 is a diagram showing the configuration of this type of remote monitoring and control device during a conventional functional test. In the figure, 01 is the control center side device (master station), and 2 is the controlled center side device (slave station).
03 is a transmission line that connects this master station 1 and slave station 02. In this example, 05 is a simulated circuit breaker device as hardware that simulates a circuit breaker, and 04 is a slave station 0.
2 and a large number of terminal devices in the simulated circuit breaker device 05. In this way, in a functional test of this type of remote monitoring and control equipment, in order to check the response of the terminal equipment based on the control of the equipment, that is, the display state, the slave station is equipped with equipment equivalent to the actual terminal equipment (in this example, a simulated Breaker device 0
5).

[Problems to be solved by the invention]

However, as described above, there are problems in that it requires a great deal of effort and time to connect the simulated circuit breaker device 05 to the slave station 02, and wiring errors are likely to occur. An object of the present invention is to provide a simple function test device for testing the function of a remote monitoring and control device without connecting a simulated circuit breaker device (therefore, a terminal device) to the slave station, and to solve the above-mentioned problems. Therefore, in the slave station, for each input/output point of the signal exchanged with the terminal device, based on the "on" or "off" control command from the master station to the terminal device, A state data writing means is provided for writing this state data without going through the terminal device in a state data storage area that stores state data of “on” or “off” that is input in response from the terminal device to the slave station. It is something.

[Means and actions for solving problems]

In order to solve the above-mentioned problems, the device of the present invention includes a master station 01, etc., and one or more slave stations 02, etc. belonging to the master station, and controls a plurality of terminal devices belonging to the slave stations. , and a remote monitoring and control device that monitors the status of the terminal device, wherein the master station includes data for selecting the terminal device;
A selection/control signal (current selection/control code 1, etc.) consisting of a control command indicating that the terminal device should be turned on or off is transmitted to the slave station, and based on this selection/control signal, , the slave station gives a control signal corresponding to the control command to the terminal equipment, and the slave station turns on or off corresponding to each of the terminal equipment belonging to its own station. It has a state data storage area (input state memory M3, etc.) for storing data, receives state data indicating the "on" or "off" state from each terminal device, and transfers this state data to the state data. A simple function for testing the function of a remote monitoring and control device configured to store the status data in a storage area, edit the status data as necessary, and send it to the master station, with the terminal device removed. In the test device, state data writing means (in the slave station) writes state data into the state data storage area corresponding to the terminal device to be selected based on the selection/control signal from the master station. Each means 2 in Figure 1
7, 9-11, M1, M2, etc.) are provided for each area of the status data storage area in correspondence with each terminal device.

【Example】

Embodiments of the present invention will be described below based on FIGS. 1 and 2. FIG. 1 is a block circuit diagram showing a configuration as an embodiment of the present invention, and FIG. 2 is a time chart for explaining the operation of FIG. Figure 1 shows the input of "on" or "off" state data received from the terminal device belonging to the slave station in response to the "on" or "off" control signal to the terminal device belonging to the slave station. The circuit for one state data input point is shown among the circuits for simplified functional testing newly provided for each point. In the figure, current selection/control code 1 is the selection/control code that this slave station 02 received from the master station 01 this time, and this code is the selection data (equivalent to an address) for identifying the terminal device of this slave station 02 In this example, it includes a control command to the effect that the terminal device should be turned on or off. Further, the previous selection/control code 2 is the previous selection/control code stored at this status data input point. Next, the "off" code determining means 4 is a means for applying "1" to the AND gate 6 when the control command in the current selection/control code 1 is a command for "off". In addition, the "ON" code determination means 5 is selected this time.
This is means for giving "1" to the AND gate 7 when the control command in the control code 1 is a command for "in". The input state memory M3 is the input state from the terminal device in question.
“1” or “0” indicating the device is “on” or “off” or the state of “off” or “on”
This is a memory for storing state data. The contact information memory M2 stores in advance a predetermined logical value depending on whether "1" or "0" of the status data corresponds to "on" or "off" of the terminal device (contact). It's memory. That is, in the case of a terminal device whose status data "0"("1") indicates "off"("on"),"1" is written in the memory M2, and conversely, when the status data "1"("0") ”) is “cut”
(“ON”), “0” is stored in memory M2.
is written. The input bit designation memory M1 is a memory that stores the positions (addresses) of the contact information memory M2 and the input state memory M3 for each position of the terminal device specified by the selection data in the current selection/control code 1. 3 detects a change in the state of the signal on the transmission line 03 (abbreviated as state change) and outputs "1" to the AND gate 6,
7 is an AND gate for detecting the "off" command, 7 is an AND gate for detecting the "on" command, 9 is an AND gate for notifying the "off" command, and 10 is the "on" command. AND gate for notifications,
11 is a NOT element. The switching means 16 is means for switching the contact of either the AND gate 6 or 7 to the side that outputs "1". Next, in Fig. 2, 6 to 10 are time charts when the status data "0" indicates the terminal equipment (contact) is "on", and 11 to 15 are the time charts when the status data "1" indicates the terminal equipment (contact) is "on". The time chart in the case of "ON", and 1 to 5 are common time charts in these two cases. In FIG. 2, "1" corresponds to a "High" level signal, and "0" corresponds to a "Low" level signal. Next, the operation shown in FIG. 1 will be described with reference to FIG. 2. The slave station 02 uses the current selection/control code 1 received from the master station 01 and the previous selection/control code 2 received last time stored within its own station for use in detecting a change in status.
The EXOR gate 3 makes a comparison, and if there is a change in the condition, "1" is given to the AND gate 6 for detecting the "OFF" command and the AND gate 7 for detecting the "ON" command.
On the other hand, the AND gates 6 and 7 have an "off" code discrimination means 4 or an "on" code discrimination means depending on whether the current selection/control code 1 includes an "off" command or an "on" command. Since "1" is input from 5, the output 13 of the AND gate 6 becomes "1" when the "off" command is included, and the output 14 of the AND gate 7 becomes "1" when the "on" command is included. ” becomes. The above operations are shown in time charts 1 to 5 in Figure 2.
It will be done. On the other hand, the input bit specification memory M1 inputs the selection/control code 1 this time and inputs the contact information memory M2.
and outputs a signal for accessing the area of the corresponding position in the input state memory M3. Here, the terminal device in the corresponding position is turned on.
("off"), "0" is written in the contact information memory M2 (Fig. 2, 6). “0” is input from the memory M2 to one input terminal of the AND gates 9 and 10. On the other hand, when the current selection/control code 1 includes an "in" command, the output 14 is "1" and the output of the AND gate 10 is "0" (FIG. 2, 8). At this time, the switching means 16 is switched to the lower contact, so that "0" is written in the input state memory M3 even if there is no actual input from the terminal device (see Fig. 2).
0). On the other hand, when the current selection/control code 1 includes the "off" command, the output 13 becomes "1", and the AND
The output of gate 9 is "0" (Fig. 2, 7), so
The output of the NOT element 11 becomes "1" (FIG. 2, 9). At this time, the switching means 16 is switched to the upper contact, so that "1" is written in the input state memory M3 (FIG. 2, 10). Next, the terminal device in the corresponding position is turned on (off).
If the device outputs state data of "1"("0"),"1" is written in the contact information memory M2 (FIG. 2, 11), and the AND gate 9,
“1” is input to one input terminal of 10. On the other hand, when the current selection/control code 1 includes an "in" command, the output 14 is "1" and the output of the AND gate 10 is "1" (FIG. 2, 13). As a result, "1" is written into the input state memory M3 without any actual input from the terminal device as described above (FIG. 2, 15). On the other hand, when the current selection/control code 1 includes the "off" command, the output 13 becomes "1", and the output of the AND gate 9 is "1" (Fig. 2, 12), so NOT
The output of element 11 becomes "0" (FIG. 2, 14).
As a result, "0" is written into the input state memory M3 (FIG. 2, 15). All of these operations are performed independently for each position designated by each selection/control code. The status data in the input status memory M3 written in this way is edited as necessary and sent from this slave station 02 to the master station 01, as in the past, and is displayed on the status display device (not shown) of the master station. is displayed corresponding to the state data.

【Effect of the invention】

As described above, according to the present invention, in response to the "on" or "off" command of the current selection/control code 1 given from the master station 01 to the slave station 02, the terminal device specified by the code can control the slave station. A means for writing the state data to be given to station 02 into the input state memory M3 in the slave station without going through this terminal equipment is provided at each position in the slave station corresponding to each terminal equipment (therefore, the state data input for each terminal equipment is Therefore, without actually connecting the terminal device (therefore, the simulated circuit breaker device 05) to the slave station 02, it is possible to connect the terminal device to the master station 01 as if the terminal device were connected to the slave station. It is possible to easily perform functional tests such as control functions and display functions of the remote monitoring and control device as a system consisting of the slave station 02 and the slave station 02, and it also eliminates the large amount of time required to connect a simulated circuit breaker to the slave station. Effort and time can be removed.

[Brief explanation of the drawing]

Fig. 1 is a block circuit diagram showing a configuration as an embodiment of the present invention, Fig. 2 is a time chart for explaining the operation of Fig. 1, and Fig. 3 is a system during a function test of a conventional remote monitoring and control device. FIG. 01: Control center side device (master station), 02: Controlled center side device (slave station), 03: Transmission line, 1: Current selection/control code, 2: Previous selection/control code,
3: EXOR gate for detecting condition change, 4: "OFF" code discrimination means, 5: "ON" code discrimination means, 6: "OFF"
AND gate for command detection, 7: For "on" command detection
AND gate, 9: AND gate for "off" command notification,
10: AND gate for “in” command notification, 11:
NOT element, 16: switching means, M1: input bit designation memory, M2: contact information memory, M3: input state memory.

Claims (1)

[Claims] 1. A remote monitoring system consisting of a master station and one or more slave stations belonging to the master station, controlling a plurality of terminal equipment belonging to the slave station, and monitoring the status of the terminal equipment. A control device, wherein the master station receives data for selecting the terminal device;
A selection/control signal consisting of a control command to turn on or off the terminal equipment is transmitted to the slave station, and based on this selection/control signal, the slave station switches to the terminal. A state data storage area for giving a control signal corresponding to the control command to the equipment, and for storing state data of "on" or "off" in correspondence with each of the terminal equipment belonging to the slave station. receives status data indicating the "on" or "off" status from each of the terminal devices, stores this status data in the status data storage area, and edits the status data as necessary. In the simple function test device for testing the function of a remote monitoring and control device configured to transmit data to the master station with the terminal equipment removed, the slave station includes a current signal from the master station. a state change detection means for detecting a change in state between the selection/control signal and the previous selection/control signal from the master station; a first determination means for determining whether the selection/control signal is "on";”; and “ON” and “OFF” of the selection/control signal and status data “1” written in the status data storage area;
a contact information memory that sets a correspondence relationship with "0"; a designation memory that outputs address signals for the state data storage area and the contact information memory based on the selection data of the selection/control signal; and the state change detection means. When a state change is detected, based on the determination results of the first and second determining means, the state data obtained from the information read from the contact information memory by the address signal from the designated memory is transferred to the designated memory. a writing means for writing into the state data storage area designated by an address signal from the terminal device; A simple functional test device for control equipment.